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Two smooth spheres A and B of masses 4kg...

Two smooth spheres `A` and `B` of masses `4kg` and `8kg` move with velocities `9m//s` and `3m//s` in opposite directions. If `A` rebounds on its path with velocity `1m//s`, then

A

The velocity of sphere `B` after the impact `2m//s`

B

The coefficient of impact `e=1/4`

C

The loss of kinetic energy `=180J`

D

Impulse by `A` on `B` is `24Ns`

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